Work on Hexworthy continues slowly, but I have made a little progress. Following the carving of the polystyrene landscape, it was given an outer "shell" layer from kitchen towel soaked in PVA. This is a bit like "decoupage" I suppose, the kitchen towel allows the glue to soak right through. A couple of layers is surprisingly tough once solid.
I've also stuck the walling and bridge in place now, there are a few gaps to fill in.